function [ status ] = mx_eyelink_send_command( text )
%MX_EYELINK_SEND_COMMAND
% Sends a command to the connected eye tracker.
%
% Remarks:
% If eyelink_send_commnd() is used, the text command will be executed, and a 
% result code returned that can be read with eyelink_command_result().
% Parameters:
% text 	String command to send.
% Returns:
% 0 if successful, otherwise link error.
%
%----------------------------------------------------------------------------
% Copyright Eduardo Aponte 2013
% aponteeduardo@gmail.com